How many types of blockchains have emerged after bitcoin introduced blockchain to the world?

[{"selector":"#anim-e83abda0-5f9a-4ee9-8e20-36b43bd24248 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(0%, 0%) scale(1)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] Types of Blockchain There mainly three types of Blockchains that have emerged after Bitcoin introduced Blockchain to the world.

How many types of blockchains have emerged after bitcoin introduced blockchain to the world?

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1. Public Blockchain 2. Private Blockchain 3. Federated Blockchain